“But the stability of these batteries has always been poor.” Now, Li and his team have designed a stable, lithium-metal solid state battery that can be charged and discharged at least 10,000 times — far more cycles than have been previously demonstrated — at a high current density.
1. Introduction Among numerous forms of energy storage devices, lithium-ion batteries (LIBs) have been widely accepted due to their high energy density, high power density, low self-discharge, long life and not having memory effect , .
All-solid-state lithium-ion batteries offer enhanced safety and energy density compared to liquid electrolyte counterparts, but face challenges like lower conductivity and insufficient electrode contact. In a recent study, scientists have discovered a stable, highly conductive lithium-ion conductor in the form of a pyrochlore-type oxyfluoride.
For decades, researchers have tried to harness the potential of solid-state, lithium-metal batteries, which hold substantially more energy in the same volume and charge in a fraction of the time compared to traditional lithium-ion batteries.
These materials have both good chemical stability and mechanical stability. 349 In particular, these materials have the potential to prevent dendrite growth, which is a major problem with some traditional liquid electrolyte-based Li-ion batteries.
All-solid-state lithium-ion (Li-ion) batteries with solid electrolytes are non-flammable and have higher energy density and transference numbers than those with liquid electrolytes. They are expected to take a share of the market for conventional liquid electrolyte Li-ion batteries, such as electric vehicles.